电力系统及其自动化学报2011，Vol.23Issue(1)：64-68,5.
一种改进小波阈值的电力线通信信号消噪方法
De-noise Method of Power Line Communication Signals Based on the Improved Wavelet Threshold Scheme
夏文文1
作者信息
- 1. 湖南省电力公司娄底电业局,娄底,417000
- 折叠
摘要
Abstract
As the useful signal for power line communication (PLC) is usually affected by the noise to some extent, a scheme of wavelet threshold de-noising method associated with translation invariant wavelet is proposed in this paper. Firstly, the power line signals with noises are wavelet decomposed. Then, the wavelet signals are treated by translation invariant wavelet and improved wavelet threshold de-noising method. Lastly, the PLC signals are reconstructed. Take on-site original signals for example, the waveforms and bit error rate (BER) are acquired. The research has concluded that the improved scheme proposed by this paper archives reasonable de-noising with high signal-to-noise ratio (SNR). Analysis and comparison results show that the scheme has more advantages in de-noise and BER effects compared with the existed methods.关键词
电力线通信/小波/消噪/阈值/平移不变量Key words
power line communication/ wavelet/ de-noise/ threshold/ translation invariant分类
信息技术与安全科学引用本文复制引用
夏文文..一种改进小波阈值的电力线通信信号消噪方法[J].电力系统及其自动化学报,2011,23(1):64-68,5.
